Kristen Stewart's 21st Birthday Bash: Details Emerge!

Doing quite the admirable job in keeping the festivities under wraps, it is being reported that Kristen Stewart was thrown quite the 21st birthday in Squamish, Canada on Saturday night (April 9).

While early rumors told that the Bella Swan actress wasn't on-hand at a party held at the Executive Suites Hotel's Rockwell's Bar & Grill, it has been confirmed by Us magazine that Kristen was on hand and the center of attention during the celebratory fete.

An Us source dished, "Rob led the crowd singing for her, and you could tell she was so embarrassed but in a cute way! Everyone was in a good mood, but it was a bittersweet night (as filming is almost complete)."

As for Kristen's big gift, the "Twilight" gang are said to have pitched in on quite the spectacular present. "Rob was so excited for Kristen and they each took turns riding it," the Us insider dished. "Kristen learned to ride a dirt bike in New Moon so they thought it would be appropriate. Rob was supervising as she sat on it to make sure she was ok. They looked like they were having a great time, and it will be something they can really enjoy!"

Sure to make fans of Robsten happy, the source added of the scene, "Rob and Kristin were together all night. They held hands and he kissed her cheek a bunch of times."